content: /*******************************************************************************
   * Copyright 2011, 2012 Chris Banes.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *******************************************************************************/
  package com.handmark.pulltorefresh.library;
  
  import android.annotation.TargetApi;
  import android.content.Context;
  import android.os.Build.VERSION;
  import android.os.Build.VERSION_CODES;
  import android.util.AttributeSet;
  import android.view.View;
  import android.widget.GridView;
  
  import com.handmark.pulltorefresh.library.internal.EmptyViewMethodAccessor;
  
  public class PullToRefreshGridView extends PullToRefreshAdapterViewBase<GridView> {
  
  	public PullToRefreshGridView(Context context) {
  		super(context);
  	}
  
  	public PullToRefreshGridView(Context context, AttributeSet attrs) {
  		super(context, attrs);
  	}
  
  	public PullToRefreshGridView(Context context, Mode mode) {
  		super(context, mode);
  	}
  
  	public PullToRefreshGridView(Context context, Mode mode, AnimationStyle style) {
  		super(context, mode, style);
  	}
  
  	@Override
  	public final Orientation getPullToRefreshScrollDirection() {
  		return Orientation.VERTICAL;
  	}
  
  	@Override
  	protected final GridView createRefreshableView(Context context, AttributeSet attrs) {
  		final GridView gv;
  		if (VERSION.SDK_INT >= VERSION_CODES.GINGERBREAD) {
  			gv = new InternalGridViewSDK9(context, attrs);
  		} else {
  			gv = new InternalGridView(context, attrs);
  		}
  
  		// Use Generated ID (from res/values/ids.xml)
  		gv.setId(R.id.gridview);
  		return gv;
  	}
  
  	class InternalGridView extends GridView implements EmptyViewMethodAccessor {
  
  		public InternalGridView(Context context, AttributeSet attrs) {
  			super(context, attrs);
  		}
  
  		@Override
  		public void setEmptyView(View emptyView) {
  			PullToRefreshGridView.this.setEmptyView(emptyView);
  		}
  
  		@Override
  		public void setEmptyViewInternal(View emptyView) {
  			super.setEmptyView(emptyView);
  		}
  	}
  
  	@TargetApi(9)
  	final class InternalGridViewSDK9 extends InternalGridView {
  
  		public InternalGridViewSDK9(Context context, AttributeSet attrs) {
  			super(context, attrs);
  		}
  
  		@Override
  		protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX,
  				int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {
  
  			final boolean returnValue = super.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX,
  					scrollRangeY, maxOverScrollX, maxOverScrollY, isTouchEvent);
  
  			// Does all of the hard work...
  			OverscrollHelper.overScrollBy(PullToRefreshGridView.this, deltaX, scrollX, deltaY, scrollY, isTouchEvent);
  
  			return returnValue;
  		}
  	}
  }
  